/Engine/Source/Developer/IoStoreUtilities/Public/IoStoreUtilities.h
bool ExtractFilesFromIoStoreContainer ( const TCHAR * InContainerFilename, const TCHAR * InDestPath, const [FKeyChain](API\Runtime\Core\Misc\FKeyChain) & InKeyChain, const [FString](API\Runtime\Core\Containers\FString) * InFilter, [TMap](API\Runtime\Core\Containers\TMap)< [FString](API\Runtime\Core\Containers\FString), uint64 > * OutOrderMap, [TArray](API\Runtime\Core\Containers\TArray)< [FGuid](API\Runtime\Core\Misc\FGuid) > * OutUsedEncryptionKeys, bool * bOutIsSigned )